The Paleomagnetism equipment is composed of: i) a Cryogenic magnetometer (SQUID) (755 SRM, 2G Enterprises), equipped with a three-coil system with the capacity to apply a field of up to 170 m Tesla; ii) a thermal Demagnetizer model ASC TD48-SC (ASC Scientific), with a capacity to heat 48 one-inch diameter or one -inch cubic geological samples in a single batch ; iii) a MicroMag 3900 vibrating magnetometer (VSM - Princeton Measurements Crop.) with cryostat and furnace; a Kappabridge MFK1-FA susceptometer (AGICO), full equipped with special Up/Down mechanism and rotator for spinning specimen method of AMS measurements; and Bartington MS2 susceptometer, with a variety of sensors together with a field portable mesauring instrument; iv) a ASC IM10-30 impulse magnetizer with the capacity to create magnetic fields of up to 5 Teslas and enabling the application of isothermal remanent magnetization (IRM) for the characterization of the ferromagnetic phases; v) a Helmholtz Coil 3D coil system (ASC), which provide a known and uniform magnetic field between the coils. They are calibrated in such a way that the magnetic field inside them is neutral so that the samples are not affected by the current magnetic field. They are used as a "waiting" area for the samples, before being analyzed. vi) a JR-6A dual spinner magnetometer, for rapid and accurate measurement of remanent magnetization, fully controlled by a PC notebook or desktop; vii) a LDA5 AF/PAM1, an alternating field demagnetizer with a field amplitude up to 200mT, computer-controlled and fully automated, with the extension of PAM1 which serves for applying a deliberate anhysteretic or isothermal magnetization.
Potential Results
The objective of the laboratory and the equipment present in it, is the study of the magnetic properties of the rocks in order to obtain as much information as possible, from magnetic remanence determination, demagnetization, isothermal remanent magnetization (IRM) and anhysteretic remanent magnetization (ARM) in sediments and rocks, magnetic susceptibility and anisotropy, first-order reversal curves (FORC’S), hysteresis cycles and Curie curves. All this, to be able to develop from geological studies through the analysis of magnetostratigraphy, to establish time frames of deposits and / or specific locations, to environmental magnetism through measurements of magnetic parameters of soils and dust in suspension.